An alkaloid with diverse biological activities inhibits arachidonic acid- collagen- thrombin- or PAF-induced platelet aggregation in washed isolated rabbit platelets at 100 Ug/ml cytotoxic to human KB oral HeLa cervical and DLD-1 colon cancer cells (EC50s 20 55 2 5 and 6 4 Ug/ml respectively) and induces apoptosis in A549 PC-9 and EBC-1 human lung cancer cells from 50-200 UM increases serum ALT and ALP activities and induces hepatocyte necrosis in mice at 150 or 200 mg/kg